package cn.edu.zafu.bigdata.x.xiejunjie;

public class Rectangle extends Shape {
    private double length;
    private double width;
    public Rectangle(double length, double width)
    {
        this.length = length;
        this.width = width;
    }
    public double area()
    {
        return length * width;
    }
    public double perimeter()
    {
        return 2 * (length + width);
    }
}
